Bread-making plant.



G. E; & J. E. POINTON.

' BREAD MAKING PLANT. APPLIOATIONIILED AUG. a, 1910.

' Patented May 27-, 1913.

4 SHEETS-SHEET 1.

ccccc ccce o.o 000000000 GGCQGGGGGGC OGOOOGOQ OQ O .......GG.GG 00000000 icon-000 00 900000000 I/VVEA/70/PS 9% WWW GGGGGCGGCGG 99000909906G. E & J. E. POINTON.

BREAD MAKING PLANT.

APPLICATION FILED AUG. 6, 1910.

Patentd May 27, 1913.

4 SHEETSSHEET 3.

U. E. & J. E. POINTON.

BREAD MAKING PLANT. APPLICATION FILED AUG. 6, 1910.

1,062,795. Patented May 27, 1913 4 SHEET S-SHEET 4.

. I kwvzyraks gm MW tion.

UNITED STAT-Es rA'rENT'oFnioE.

CHARLES E, POINTON'AND JOHN E. FOINTON,-OF PETEEBOROUGH, ENGLAND.

B READ-MAKING PLANT.

' .To all whom z't may concern Be it known that we, CHARLES EDWARDPOINTON and JOHN EDWARD Poix'ron, subjects of Great Britain, residing atPeterborough,'in'the county of No'rthants, Eng.

land, have inventedcertain new and useful Improvements elating toBread-Making Plants,

In connection with mechanical equipments for, bakeries various proposalshave been made for subjecting the dough portions'on discharge. from the-molding and. proving machines to the baking heat while ona continuouslyor intermittently moving conveyer or like apparatus.

'Referring to the four accompanying sheets of explanatory drawings,Figure 1 is a sectional side elevation, Fig. 2 a sectional plan and Fig.3 a sectional end elevation,

representing one form of baking apparatus as constructed inaccordancewith this in vention. ,Figs. 4 and 5 areelevations, at right angles toeach other, of one ofthe zigzag or circuitous coils of tubing employedfor heating the oven -or baking chamber;

Fig. 6 is an elevation and Fig. 7 a plan representing in diagram form,the complete bread making plant.

views indicate the same or similar parts.

In one convenient manner of carrying the invention into'eifect a pair ofendless chains as a carrying between them a number of pivotally-mountedtrays b are passed over suitably arranged pulleys as 0 so that the traysare caused to travel along alternately ascending and d icending verticalpaths, or backward and forward along horizontal paths (as illustrated inthe drawings), or through any other'circuitous .course. Fhe greaterportion of the chains is inclosed in an oven or baking chamber', formedby the non-conducting inclosing walls as d and heated by Perkins tubes eor other equivalent means, so that the dough portions passingtherethrough are subjected to a heating or baking action.

Specification of Letters Patent. Application filed August 6, 1910.Serial No. 575,925

of which the following is a specifica- Patent-ed May 2,7, 1913.

At the front and rear of the chamber the chains a with their trays b maybe arranged to pass to the, exterior over guide pulleys, to facilitatecharging and discharging. Or the chains "may be arranged for bothoperations to be effected at chamber.

pinions on short fixed Any convenient means such as the tray pivotsengaging with racks may be employed for invcrting the trays and soautomatically dis-- charging the contents. Further,-the-- trays may beautomatically charged by suitable chutes into which the dough portionsare delivered by a conveyer from the proving machine or fermentationchamber working synchronously or in union with the working of the ovenconveyer. Thus, in the example illustrated in the drawings, a shootv as'f is arranged at the mouth or entrance aperture the same side of the gof the baking chamber so that as the chain or chains as from the provingmachine 71- passin proximity to the said chute f,.the

dough or loaf containers as '2: consisting of open frames into winch thetins or boxes containing the dough are placed are automatically detachedor withdrawn by thechute from the prover chain and picked up, as isclearly shown at Fig. 1, by the advancing trays Z) of the oven or bakingchamber chains (1. The prover chain it continues its journey beneath thebaking chamber. and

passes up on the opposite side where it recjeives the baked loaves fromthe baking chamber conveyer shelves or trays Z), the transference beingeffected by another chute j similar tothe chute f aforesaid which dotac'hes the container 71 from the chains a and s The same referenceletters n the different diverts them into the path of the chain it sothat the latter may pick them up. The chain or conveyer h, with thebaked loaves therein,'may pass through the bread or store room for thedischarge of its contents before returning to the prover, orthebakedloaves may be removed by hand immediately the conveyer leaves thedischarge aperture is of the oven or baking chamber.

As the prover chains or conveyer it returns to the prover the dough orloaf containers 71 attached thereto are greased and prepared by anoperative standing on the platform if, for the reception of furtherdough portions coming from the preparatory port-ion of the plant,consisting of the'dividing machine if, preliminary molder 72,,preliminary prover 7L5 and finishing molder h. a i

Intermittent or continuous mi t on may be given to' the chain orconveyer a to suit the method of charging and discharging the.

dough portions, the rate of motion being such that. the time occupiedin' traversing the chamber is that required for proper bale. Y ing. Thedriving arrangement shown in the. drawings comprises the fast and loose.belt pulleys 1m and worm gearing operating the chain wheel 71, fromwhich a like rotary motion is transmitted, by chain to the 'drivingchain wheels 2) and 9. From the said wheels a, 79 and Q (which aresecured to shafts caifi'ymg driving wheels for the chaln or chains'a),an intermittent mot-ion is imsets, one set being inserted from theonesideand the other set from the opposite side of v the oven. Each setextends to the center of parted, by means of any known mechanism totheoven conveyer. Such aClIStIIbHtIOD of-the driving effort at threepositions rather than at one insures a more steady and reli-' ablemotion Provision for tightening the conveyer chains isafl'orded bymounting the guide pulleys r and s on sliding carriages or bearmgs whichcan be drawntogether by any ordinary mechanical means, or be-tensionedby a hanging weight or otherwise. i

The Perkins tubes forthe heating of the oven or baking chamber aredisposed in two the chamber, or nearly so, as indicated at Fig.3;whichshows one of the sets. Each of the two sets or batteries of tubes ismade up of a number of individual and independent coils of a'zig-zag orcircuitous form, such as shown at Figs-(land 5 which represent one ofsuch coils. The portion'which enters the furnace is shown at the lowerpart of Fig. 5 where t represents the furnace.

As will be clearly seen at Figs. 1 and 3 of the drawings, the horizontalportions of the tube coils in each set or battery or the portions whichproject to or toward the center of the heating chamber, form as it'werea tier of shelves between which the loaves or dough portions areconveyed in series, in a zig-zag course, on the conveyer trays 6.Throughout such course the dough portions are therefore subjected to avery eflective top and bottom heat due to their close proximity to thetubes e which are both above and belowlhemduring tueir progressfrom theentrance to the exit of the bakery chamber. y

We do not limit ourselves to circulating tubes of the form shown byFigs; 4 and 5,

and instead of the furnace being'situated underneath the oven it may bearranged at the side of same or two furnaces may be employed one ateither side of the oven.

By employing a circuitous conveyer with heating elements therefor asabove described,

a baking chamber of relatively small dimen sions can be employed for agiven continuous output of loaves. The heating can in consequence beeasily regulated; further, an

economy can be eifected in floor space and the apparatus constructed atcomparatively small initial cost.

The upper part of the chamber or the part above the mouth or inletopening 9 maybe kept charged with steam, for imparting bloom to theloaves or dough portions, while the part below the mouth or inlet iskept 'free from steam, allowing the final baking to take placein a dryatmosphere. It will be understood thatthe said mouth. or opening 9serves to prevent the steam from de scending below it.

Having thus described our invention,

what we claim as new and desire to secure .In testimony whereof we'afiixour signat-ufes in presence of two witnesses. 7

CHARLES E. POINTON. JOHN E. POINTON.

, Witnesses: v

BE rnaar H. hitirr'rrinws, Gnonon Tarrnscn

